CVE-2024-35430
📋 TL;DR
This vulnerability allows authenticated users in ZKTeco ZKBio CVSecurity to bypass password verification when exporting data. Attackers with valid credentials can extract sensitive information without proper authorization. Organizations using affected versions of this access control software are at risk.
💻 Affected Systems
- ZKTeco ZKBio CVSecurity
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Malicious insider or compromised account exports all biometric data, user credentials, access logs, and system configurations, leading to complete security compromise and potential identity theft.
Likely Case
Authenticated attacker exports sensitive personnel data, access patterns, and system information for reconnaissance or data exfiltration.
If Mitigated
Limited data exposure if strong access controls, network segmentation, and monitoring are in place to detect unusual export activities.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.1.3_R
Vendor Advisory: https://www.zkteco.com/en/Security_Bulletinsibs/16
Restart Required: Yes
Instructions:
1. Download ZKBio CVSecurity v6.1.3_R from ZKTeco support portal. 2. Backup current configuration and data. 3. Install the update following vendor instructions. 4. Restart the application/service. 5. Verify functionality.
🔧 Temporary Workarounds
Restrict Export Permissions
allLimit data export capabilities to only essential administrative accounts
Monitor Export Activities
allImplement logging and alerting for data export operations
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for all user accounts
- Segment the ZKBio CVSecurity system from other critical networks and monitor all data export activities
🔍 How to Verify
Check if Vulnerable:
Check ZKBio CVSecurity version in application settings or about dialog; versions 6.1.1_R or earlier are vulnerable.Check Version:
Check application GUI or configuration files for version informationVerify Fix Applied:
Confirm version is 6.1.3_R or later and test export functionality with non-admin accounts to verify password prompts work.📡 Detection & Monitoring
Log Indicators:
- Unusual data export activities, especially from non-admin accounts
- Multiple export attempts in short timeframes
- Export operations without corresponding authentication events
Network Indicators:
- Large data transfers from ZKBio CVSecurity system
- Export-related API calls without proper authentication headers
SIEM Query:
source="zkbio_logs" AND (event="data_export" OR operation="export") AND user!="admin"